plumiest
/ˈpluːmaɪɛst/Definitions
1. adjective
most fully or richly colored or flavored with purple; most luxuriantly purple
“The plumiest grapes grew in the warmest part of the orchard.”
2. superlative of plumy
used to compare plumy things; having the most of a quality
“She found the plumiest feather in the bird’s nest.”